Patents by Inventor Akihiko Kandori
Akihiko Kandori has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240074678Abstract: A system for evaluating a degree of brain dysfunction of a subject, such as a decline in cognitive function, calculates a difference in movement functions between both hands in a coordination movement. The system includes a storage device for storing time-series data on a finger movement task of each of both hands of a test subject acquired by a movement sensor; a data processing device for analyzing the time-series data stored in the storage device; and a display device for displaying an analysis result analyzed by the data processing device. The data processing device includes a movement waveform generation unit for generating a movement waveform corresponding to the time-series data stored in the storage device; and a difference-between-hands feature quantity generation unit for generating a difference-between-hands feature quantity which represents a difference in respective finger movement tasks between both hands, based on the respective movement waveforms of both hands.Type: ApplicationFiled: November 13, 2023Publication date: March 7, 2024Applicant: Maxell, Ltd.Inventors: Akihiko KANDORI, Yuko SANO
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Patent number: 11896205Abstract: A digestive organ internal contents sampling capsule for sampling internal contents in a digestive organ includes: a cylindrical container insoluble in a digestive tract for housing the internal contents in the digestive organ; an outer lid enclosing an orifice of the cylindrical container and to dissolve at least partially in the digestive organ; an inner lid arranged in the cylindrical container, and to swell in response to contact with the internal contents in the digestive organ to enclose the orifice of the cylindrical container after the orifice is exposed by dissolving of at least a part of the outer lid; and a marker material to be discharged together with the cylindrical container housing the internal contents in the digestive organ and feces.Type: GrantFiled: March 17, 2021Date of Patent: February 13, 2024Assignee: Hitachi, Ltd.Inventors: Ayako Nishimura, Akihiko Kandori, Tsukasa Funane, Akiko Obata, Hirokazu Atsumori, Masashi Kiguchi
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Patent number: 11872028Abstract: To perform respiratory monitoring and cardiac-output measurement on general patients, an aspect of a biological measurement apparatus includes: at least two electrodes that are attached to a living body; a power supply that causes an AC current to flow between the two electrodes; at least two coils that are placed so as to sandwich a line linking the two electrodes, and detect a magnetic field related to a change in the AC current accompanying a change in impedance of the living body; and a detection circuit that performs addition or subtraction of signals related to the magnetic field detected with the two coils, and outputs the signals as a change in the impedance.Type: GrantFiled: August 7, 2020Date of Patent: January 16, 2024Assignee: HITACHI, LTDInventors: Akihiko Kandori, Ryuzo Kawabata, Kuniomi Ogata, Takako Mizoguchi, Tsukasa Funane
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Patent number: 11850042Abstract: A system for evaluating a degree of brain dysfunction of a subject, such as a decline in cognitive function, calculates a difference in movement functions between both hands in a coordination movement. The system includes a storage device for storing time-series data on a finger movement task of each of both hands of a test subject acquired by a movement sensor; a data processing device for analyzing the time-series data stored in the storage device; and a display device for displaying an analysis result analyzed by the data processing device. The data processing device includes a movement waveform generation unit for generating a movement waveform corresponding to the time-series data stored in the storage device; and a difference-between-hands feature quantity generation unit for generating a difference-between-hands feature quantity which represents a difference in respective finger movement tasks between both hands, based on the respective movement waveforms of both hands.Type: GrantFiled: June 18, 2021Date of Patent: December 26, 2023Assignee: MAXELL, LTD.Inventors: Akihiko Kandori, Yuko Sano
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Publication number: 20230306604Abstract: An image processing apparatus includes an image acquisition unit acquiring a medical image, a region setting unit setting a peripheral region around an inner region set in the medical image as a region including a lesion, an intensity value ratio distribution calculation unit calculating a histogram comprising a distribution of intensity value ratios for the inner region and calculating a histogram being a distribution of intensity value ratios for the peripheral region, a ratio difference calculation unit that calculates a ratio difference comprising a difference between intensity value ratios in the inner region and peripheral regions for each of predetermined intensity values, an intensity value determination unit selecting a pixel to be highlighted in the medical image based on the ratio difference, and a display processing unit outputting the medical image whereby the pixel selected by the pixel selection unit is highlighted in the medical image to a display device.Type: ApplicationFiled: January 27, 2023Publication date: September 28, 2023Applicant: Hitachi, Ltd.Inventors: Hirokazu ATSUMORI, Stephanie SUTOKO, Tsukasa FUNANE, Ayako NISHIMURA, Akihiko KANDORI
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Patent number: 11744456Abstract: A dynamic visual acuity measuring device includes a projector projecting an index image pattern, a reflecting mirror reflecting light from the projector, a screen receiving light from the reflecting mirror and displaying the index image pattern, a movable casing holding and maintaining relative positions of the projector, the reflecting mirror, and the screen, a fixed casing supporting the movable casing, and a rotating shaft linking the movable casing rotatably to the fixed casing. In this device, the index image pattern displayed on the screen is moved in one direction by the reflecting mirror being displaced and a direction of movement of the index image pattern is changed in a coordinate system fixed to the fixed casing by the rotating shaft being rotated.Type: GrantFiled: September 8, 2021Date of Patent: September 5, 2023Assignee: MAXELL, LTDInventor: Akihiko Kandori
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Patent number: 11744486Abstract: A biometric system includes: a camera that captures a subject; a pressure information collection unit that detects a pressure value of at least one sole of the subject; a skeleton direction vector calculation unit that calculates a skeleton direction vector of the subject captured by the camera; a floor reaction force vector calculation unit that calculates a floor reaction force vector on a basis of information on pressure from the pressure information collection unit; and an analysis result output unit that displays, in a superimposing manner, the skeleton direction vector calculated by the skeleton direction vector calculation unit and the floor reaction force vector calculated by the floor reaction force vector calculation unit.Type: GrantFiled: October 19, 2020Date of Patent: September 5, 2023Assignees: Hiroshima University, Hitachi, Ltd.Inventors: Ayako Nishimura, Hirokazu Atsumori, Tsukasa Funane, Akihiko Kandori, Yasuaki Nakamura, Akiko Obata, Yuto Komatsu, Seiji Hama, Toshio Tsuji
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Patent number: 11737703Abstract: An object of the present invention is to provide a technique of quantitatively measuring physical properties including both viscosity and elasticity. A viscoelasticity measurement system includes a measurement apparatus, a processor, and a display apparatus. The measurement apparatus includes a movable unit continuously pressed against a measurement object, a first sensor outputting acceleration information corresponding to an acceleration of pressing-directional movement of a contact portion of the movable unit with respect to the measurement object, and a second sensor outputting reactive force information corresponding to a reactive force applied to the contact portion of the movable unit with respect to the measurement object. The processor calculates first information on an elasticity component of the measurement object and second information on a viscosity component of the measurement object based on the acceleration information and the reactive force information.Type: GrantFiled: November 30, 2021Date of Patent: August 29, 2023Assignee: MAXELL, LTD.Inventors: Yuhua Zhang, Akihiko Kandori, Masayoshi Ishibashi, Shinya Kajiyama
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Patent number: 11678837Abstract: The objective of the present invention is to provide a hardness meter which estimates hardness in a stable manner regardless of a compression strength. A hardness meter includes: a movable portion which is continuously pressed against an object to be measured; a sensor which outputs an output signal reflecting a reaction force at a part of the object to be measured; a motive force mechanism that causes the movable portion to perform a piston motion; a hardness estimating portion which estimates the hardness of the object on the basis of an alternating current component of the output signal, generated by the piston motion; a position estimating portion which estimates a measurement position information by shooting with a camera; and a hardness map display portion which maps and displays the hardness on a schematic diagram of the surface of a living body based on the measurement position information.Type: GrantFiled: April 22, 2022Date of Patent: June 20, 2023Assignee: Maxell, Ltd.Inventors: Yuko Sano, Akihiko Kandori, Mitsuo Okimoto, Shigemitsu Ando, Mitsunobu Watanabe
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Publication number: 20230165487Abstract: The abnormal data processing system is provided with: a storage unit for holding a multiple-subject DB in which data on multiple subjects are accumulated and individual-subject DB in which data on individual subjects are accumulated; an individual-subject DB divergence-degree calculation unit for calculating an individual-subject DB divergence degree which is the degree of divergence of the new data from the individual-subject DB; a multiple-subject DB divergence degree calculation unit for calculating a multiple-subject DB divergence degree which is the degree of divergence of the new data from the multiple-subject DB; and a composite divergence degree calculation unit for determining a composite divergence by compositing the individual-subject DB divergence degree and the multiple-subject DB divergence degree using the number of data instances in the individual-subject DB. The abnormal data processing system determines whether or not the new data is abnormal on the basis of the composite divergence degree.Type: ApplicationFiled: January 11, 2023Publication date: June 1, 2023Inventors: Yuko SANO, Akihiko KANDORI, Tomohiko MIZUGUCHI, Ying YIN
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Publication number: 20230131401Abstract: Provided is a biological examination apparatus and a biological information analysis method capable of quickly grasping a two-dimensional motions of the up-down and front-back directions of the thyroid cartilage and the lingual bone accompanied by a swallowing sound as swallowing dynamics by a non-invasive examination.Type: ApplicationFiled: April 23, 2021Publication date: April 27, 2023Inventors: Yasuaki NAKAMURA, Akihiko KANDORI, Tomohiko MIZUGUCHI
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Patent number: 11619572Abstract: An object of the present invention is to provide a durometer enabling a contact portion in contact with an object to perform smooth piston motion. The durometer includes a main body unit including a movable unit pressed continuously against an object to be measured, a first sensor outputting acceleration information corresponding to an acceleration of movement of a contact part of the object to be measured in contact with the movable unit in a pressing direction, a second sensor outputting reactive force information corresponding to a reactive force at the contact part of the object to be measured in contact with the movable unit, a motor, a crank mechanism driven by the motor and causing the main body unit and the movable unit to perform piston motion, and at least one buffering member disposed on a periphery of the main body unit.Type: GrantFiled: July 13, 2021Date of Patent: April 4, 2023Assignee: Maxell, Ltd.Inventors: Akihiko Kandori, Yuko Sano, Yuhua Zhang, Shigemitsu Ando, Mitsunobu Watanabe, MItsuo Okimoto
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Patent number: 11607153Abstract: The abnormal data processing system is provided with: a storage unit for holding a multiple-subject DB in which data on multiple subjects are accumulated and individual-subject DB in which data on individual subjects are accumulated; an individual-subject DB divergence-degree calculation unit for calculating an individual-subject DB divergence degree which is the degree of divergence of the new data from the individual-subject DB; a multiple-subject DB divergence degree calculation unit for calculating a multiple-subject DB divergence degree which is the degree of divergence of the new data from the multiple-subject DB; and a composite divergence degree calculation unit for determining a composite divergence by compositing the individual-subject DB divergence degree and the multiple-subject DB divergence degree using the number of data instances in the individual-subject DB. The abnormal data processing system determines whether or not the new data is abnormal on the basis of the composite divergence degree.Type: GrantFiled: October 17, 2018Date of Patent: March 21, 2023Assignee: MAXELL, LTD.Inventors: Yuko Sano, Akihiko Kandori, Tomohiko Mizuguchi, Ying Yin
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Patent number: 11517788Abstract: A training apparatus is capable of generating and presenting a suitable training menu for finger exercise to maintain or improve a cognitive function and/or an exercise function of a human and supporting training of the human. The training apparatus includes a measuring apparatus and a terminal device. Analysis evaluating data based on measurement of the finger exercise including finger tapping is obtained, and the analysis evaluating data contains an evaluation value of an index item related to an exercise function of a user. A training menu for the user is generated based on the analysis evaluating data and contains a training item for the finger exercise. The index item includes at least one of an amount of exercise, endurance, rhythmicity, cooperativeness of both sides, or marker trackability. The training item includes an exercise to carry out the finger tapping in accordance with teaching information, stimulation, or a marker.Type: GrantFiled: March 7, 2017Date of Patent: December 6, 2022Assignee: MAXELL, LTD.Inventors: Yuko Sano, Ying Yin, Tomohiko Mizuguchi, Akihiko Kandori, Mitsunobu Watanabe, Hiroshi Shimizu
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Publication number: 20220382554Abstract: A technique for evaluating human cognitive and motor functions by a plurality of hand movement tasks is disclosed. A task execution method determines the execution order of a plurality of tasks which a test subject is caused to execute to acquire a characteristic quantity. A test subject group task database includes scores given in advance and characteristic quantities obtained from a plurality of tasks stored as past data corresponding to each of a plurality of test subjects. In a storage device, (1) a differentiation precision database for a case in which test subjects are divided into two groups by predetermined threshold value scores differentiated by the characteristic quantities, or (2) an estimation precision database for a case in which a score is estimated using the characteristic quantity for a predetermined score value is prepared for each of the tasks on the basis of the test subject group task database.Type: ApplicationFiled: August 11, 2022Publication date: December 1, 2022Inventors: Yuko SANO, Akihiko KANDORI, Mitsunobu WATANABE
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Publication number: 20220254498Abstract: In the cyclic time-series data anomaly-part detecting system 1, the overall-data evaluating unit 13 detects the anomaly of the overall data 44A based on the overall-data feature amount 44B, and besides, creates the feature-amount importance level 45B. The anomaly-part detecting system 1 creates the partial data 46A by dividing the overall data 44A that is the cyclic time-series data, calculates the partial-data feature amount 46B, and displays and outputs the partial-data anomaly detection result 46C that is the detection result of the anomaly of the partial data 46A, based on the partial-data feature amount 46B and the feature-amount importance level 45B.Type: ApplicationFiled: May 11, 2020Publication date: August 11, 2022Inventors: Yuko SANO, Akihiko KANDORI
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Publication number: 20220240839Abstract: The objective of the present invention is to provide a hardness meter which estimates hardness in a stable manner regardless of a compression strength. A hardness meter includes: a movable portion which is continuously pressed against an object to be measured; a sensor which outputs an output signal reflecting a reaction force at a part of the object to be measured; a motive force mechanism that causes the movable portion to perform a piston motion; a hardness estimating portion which estimates the hardness of the object on the basis of an alternating current component of the output signal, generated by the piston motion; a position estimating portion which estimates a measurement position information by shooting with a camera; and a hardness map display portion which maps and displays the hardness on a schematic diagram of the surface of a living body based on the measurement position information.Type: ApplicationFiled: April 22, 2022Publication date: August 4, 2022Applicant: Maxell, Ltd.Inventors: Yuko SANO, Akihiko KANDORI, Mitsuo OKIMOTO, Shigemitsu ANDO, Mitsunobu WATANABE
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Publication number: 20220160292Abstract: An object of the present invention is to provide a technique of quantitatively measuring physical properties including both viscosity and elasticity. A viscoelasticity measurement system includes a measurement apparatus, a processor, and a display apparatus. The measurement apparatus includes a movable unit continuously pressed against a measurement object, a first sensor outputting acceleration information corresponding to an acceleration of pressing-directional movement of a contact portion of the movable unit with respect to the measurement object, and a second sensor outputting reactive force information corresponding to a reactive force applied to the contact portion of the movable unit with respect to the measurement object. The processor calculates first information on an elasticity component of the measurement object and second information on a viscosity component of the measurement object based on the acceleration information and the reactive force information.Type: ApplicationFiled: November 30, 2021Publication date: May 26, 2022Applicant: MAXELL, LTD.Inventors: Yuhua ZHANG, Akihiko KANDORI, Masayoshi ISHIBASHI, Shinya KAJIYAMA
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Patent number: 11337641Abstract: The objective of the present invention is to provide a hardness meter which estimates hardness in a stable manner regardless of a compression strength. Disclosed is a hardness meter characterized in being provided with: a movable portion which is continuously pressed against an object to be measured; a sensor which outputs an output signal reflecting a reaction force at a part of the object to be measured that is in contact with the movable portion; a motive force mechanism that causes the movable portion to perform a piston motion; and a hardness estimating portion which estimates the hardness of the object to be measured on the basis of an alternating current component of the output signal, generated by the piston motion of the movable portion.Type: GrantFiled: December 15, 2017Date of Patent: May 24, 2022Assignee: MAXELL, LTD.Inventors: Yuko Sano, Akihiko Kandori, Mitsuo Okimoto, Shigemitsu Ando, Mitsunobu Watanabe
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Publication number: 20220087655Abstract: A digestive organ internal contents sampling capsule for sampling internal contents in a digestive organ includes: a cylindrical container insoluble in a digestive tract for housing the internal contents in the digestive organ; an outer lid enclosing an orifice of the cylindrical container and to dissolve at least partially in the digestive organ; an inner lid arranged in the cylindrical container, and to swell in response to contact with the internal contents in the digestive organ to enclose the orifice of the cylindrical container after the orifice is exposed by dissolving of at least a part of the outer lid; and a marker material to be discharged together with the cylindrical container housing the internal contents in the digestive organ and feces.Type: ApplicationFiled: March 17, 2021Publication date: March 24, 2022Inventors: Ayako NISHIMURA, Akihiko KANDORI, Tsukasa FUNANE, Akiko OBATA, Hirokazu ATSUMORI, Masashi KIGUCHI